Improvement in sheet-metal cans for oils, varnish es



NITED STATES PATENT ,EEICEa ROBERT PORTER, OF PHILADELPHIA,PENNSYLVANIA.

Specification forming part of Letters Patent No. 36,359, dated September2, 1862.

To a/ZZ whom t may concern:

Be it known that I, ROBERT PORTER, of the city of Philadelphia, in theState of Pennsylvania, have invented a new and useful Im'- provement inSheet-Metal Cans for Holding Varnishes, Oils, and other Liquids, and Ido hereby declare that the following is a full, clear, and exactdescription of the construction and operation of the same, referencebeing had to the accompanying drawings, making a part of thisspeciication, in which- Figure lis a perspective View, Fig. 2 a planview, and Fig. 3 a vertical central section, showing the improvementapplied, like letters indicating the saine parts when in the differentfigures.

The object of this invention is to render the common cylindricalsheet-metal cans which are used for holding varnishes, oils, and otherliquids better adapted for the pouring and draining out of theircontents through the cork-tubes without objectionably diminishing theadvantage such cans possess for being packed economically.

It consists in Fplacing the cork-tube in or near the center of the topplate and indenting the plate with narrow radial grooves, so as toslightly'raise the saine from its periphery to its center and producedrain-grooves between them on its inner side, leading from its saidperiphery to the cork-tube, substantially in the mannerl hereinafterdescribed.

In the drawings, A is the top plate of the can; B, the cork-tube; c c,the narrow radial grooves, and d d the drain-grooves.

Sheet-metal cans having flat ends are much more economical for packingin boxes, Ste.,

than those having funnel or conical tops; but the difficulty of pouringand draining liquids from the former is a serious objection, which isentirely removed by constructing the top plates to have radialdrain-grooves in their inner sides leading to the outlets or corktubes,as represented in the drawings. In the construction of these grooves theindentations c o in the outer side of the plate A are in theirtransverse sections made nearly angular at their bottoms, andconsequently produce between them on the inner side of the plate theseries of broader radial grooves d d, which, when the can is beingdrained, serve as channels for directing the liquid from every partofthe top plate, A, to the orifice or cork-tube B, the said plate beingslightly raised from its periphery to its center or cork-tube B,substantially as is represented in Figs. 1 and 3. The corrugated andraised condition described of the plate B also adds greatlyto itsstrength as against weight or pressure from above, which in someinstances it is of considerable importance to provide for in packing,while the cost of construction is but little, if any, greater than thatof the common cylindrical can having both its ends flat.

Having thus fully described ymy improvedV can and pointed out itsutility, I wish it to be understood that I do not. desire to confine my-'self to the precise form and relative arrange- BOBT. PORTER.

Witnesses BENJ. MoRIsoN, J As. lVIcPEAn.

